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  <title>Document</title>
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<body>
  <script>
debugger
function foo() {
console.log( this.a );
}
function doFoo() {
foo();
}
var obj = {
a: 1, doFoo: doFoo
};
var a = 2;
obj.doFoo()

// 2

var obj
var a


obj = {
a: 1,
 doFoo: function doFoo() {
  function foo() {
console.log( this.a );
}
}
};
a = 2;
obj.doFoo()

  </script>
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